Washington, MO Demographics

A map of Washington's Population by Race

Washington, Missouri has an estimated population of 15,130, an increase from the 14,500 recorded in the 2020 Census. The population is 91.7% White, 4.9% Multiracial, 2.1% Hispanic, 0.8% Native American/Other, 0.3% Black, and 0.2% Asian. This demographic dot map shows the population of Washington, with one dot drawn for each person counted by the Census, color-coded by race.

Washington is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Missouri overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Washington, that probability was 16.0% in 2020 and 15.6% in the most recent ACS estimates.

Washington is ranked the 61st most populous place in Missouri, out of 1,082 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Washington was ranked the 61st most populous place in the 2020 Census.

Washington's White Population

13,877 residents of Washington, or 91.7% of the population, identify as White. The share of White residents in Washington is significantly higher than in Missouri overall, where 76.3% of the population is White. Washington ranks 375th statewide in terms of White residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Washington's White population has grown by an estimated 4.6%. White residents' share of Washington's population has remained roughly unchanged at 91.7%.

Washington is more White than neighboring Union (86.5% White), and Villa Ridge (88.6% White). Washington is less White than neighboring Three Creeks (100% White), Marthasville (94.8% White), and Augusta (97.5% White).

Washington's Black Population

38 residents of Washington, or 0.3% of the population, identify as Black. The share of Black residents in Washington is considerably lower than in Missouri overall, where 10.9% of the population is Black. Washington ranks 528th statewide in terms of Black residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Washington's Black population has declined by an estimated 55.3%. Black residents' share of Washington's population has remained roughly unchanged at 0.3%.

Washington is more Black than neighboring Three Creeks (0% Black), Marthasville (0% Black), and Augusta (0% Black). Washington is less Black than neighboring Union (2.2% Black), and Villa Ridge (1.3% Black).

Washington's Asian Population

28 residents of Washington, or 0.2% of the population, identify as Asian. The share of Asian residents in Washington is comparable to the share in Missouri overall, where 2.1% of the population is Asian. Washington ranks 252nd statewide in terms of Asian residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Washington's Asian population has declined by an estimated 75.2%. Asian residents' share of Washington's population has decreased from 0.8% to 0.2%.

Washington is more Asian than neighboring Three Creeks (0% Asian), Marthasville (0% Asian), Augusta (0% Asian), and Villa Ridge (0% Asian). Washington is less Asian than neighboring Union (1.3% Asian).

Washington's Hispanic Population

318 residents of Washington, or 2.1% of the population, identify as Hispanic. The share of Hispanic residents in Washington is slightly lower than in Missouri overall, where 5.2% of the population is Hispanic. Washington ranks 434th statewide in terms of Hispanic residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Washington's Hispanic population has declined by an estimated 20.3%. Hispanic residents' share of Washington's population has decreased from 2.8% to 2.1%.

Washington is more Hispanic than neighboring Three Creeks (0% Hispanic), and Augusta (0.4% Hispanic). Washington is less Hispanic than neighboring Marthasville (2.4% Hispanic), Union (2.5% Hispanic), and Villa Ridge (4.2% Hispanic).

Washington's Native American/Other Population

124 residents of Washington, or 0.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Washington is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. Washington ranks 610th statewide in terms of Native American/Other residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Washington's Native American/Other population has grown by an estimated 74.6%. Native American/Other residents' share of Washington's population has remained roughly unchanged at 0.8%.

Washington is more Native American/Other than neighboring Three Creeks (0% Native American/Other), Marthasville (0% Native American/Other), Union (0.1% Native American/Other), Augusta (0% Native American/Other), and Villa Ridge (0.4% Native American/Other).

Washington's Multiracial Population

745 residents of Washington, or 4.9% of the population, identify as Multiracial. The share of Multiracial residents in Washington is comparable to the share in Missouri overall, where 4.8% of the population is Multiracial. Washington ranks 705th statewide in terms of Multiracial residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Washington's Multiracial population has grown by an estimated 31.9%. Multiracial residents' share of Washington's population has increased from 3.9% to 4.9%.

Washington is more Multiracial than neighboring Three Creeks (0% Multiracial), Marthasville (2.7% Multiracial), and Augusta (2.1% Multiracial). Washington is less Multiracial than neighboring Union (7.5% Multiracial), and Villa Ridge (5.5% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.